HE Station Preamble Format Selection for Wireless Efficiency
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Solution Overview
Problem
Existing wireless networks face inefficiencies due to the transmission of preambles and non-data portions, which detract from network efficiency, and the need to coexist with multiple standards like IEEE 802.11ax and legacy versions, requiring improved communication efficiency between wireless devices.
Innovation Solution
The implementation of two preamble formats, a short and a long preamble format, in wireless networks, where the short preamble is designed for indoor use with reduced overhead and the long preamble for outdoor use with increased reliability, allowing devices to adapt based on environmental conditions and improve medium usage efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a long preamble format is used to ensure reliability in outdoor environments, then reliability is improved, but network efficiency deteriorates due to increased overhead
Solution Approach 1:
The patent implements dynamic preamble format selection where the system adapts between short and long preamble formats based on detected environmental conditions. The wireless device determines whether to use short or long preamble dynamically rather than using a fixed format, allowing optimization for both indoor and outdoor scenarios.
Solution Approach 2:
The patent changes the preamble format parameter based on environmental detection results. When outdoor conditions are detected, the system switches to long preamble format for reliability; when indoor conditions are detected, it switches to short preamble format for efficiency. This parameter adaptation resolves the contradiction between reliability and network efficiency.
2Productivity
If a short preamble format is used to reduce overhead in indoor settings, then network efficiency is improved, but reliability deteriorates in outdoor environments
Solution Approach 1:
The system dynamically selects between short and long preamble formats based on real-time environmental detection. The adaptability allows the system to use short preambles for efficiency in indoor environments while switching to long preambles when outdoor conditions require enhanced reliability.
Solution Approach 2:
The patent modifies the preamble format parameter according to detected environmental conditions. The system changes from short to long preamble format when outdoor conditions are detected, ensuring reliability is maintained while preserving network efficiency in indoor settings.
3Adaptability or versatility
If different preamble formats are implemented for different environments, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent segments the preamble structure into distinct short and long formats, each optimized for specific environments. The detection mechanism is segmented to identify environmental conditions (indoor/outdoor) and select the appropriate preamble format, making the complexity manageable through structured division.
Solution Approach 2:
The patent creates a universal detection and selection mechanism that handles both indoor and outdoor scenarios through a single adaptive system. The wireless device incorporates multi-functional capability to detect environment type and automatically select the appropriate preamble format, reducing the need for separate dedicated systems for each scenario.
Data Source
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AI summary
Apparatuses, methods, and computer readable media are disclosed. A HE station may include circuity. The circuitry may be configured to: generate a HE packet with a short preamble format or a long preamble format, wherein the HE packet comprises one or more legacy signal (L-SIG) fields followed by one or more HE signal fields (HE-SIG) and an HE long-training field (HE-LTF); and configure the HE packet to indicate whether the HE packet is configured with the short preamble format or the long preamble format. The HE packet may be configured with the short preamble format or the long preamble format based on one from the following group: a symbol after the L-SIG fields, a L-SIG polarity of a repeated L-SIG, a number of times the L-SIG fields is repeated, or a length field of one of the one or more L-SIG fields.